Bump mocha from 7.2.0 to 8.2.0

Bumps [mocha](https://github.com/mochajs/mocha) from 7.2.0 to 8.2.0.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v7.2.0...v8.2.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package.json

@@ -69,7 +69,7 @@
     "eslint-plugin-ember": "^8.14.0",
     "eslint-plugin-node": "^11.1.0",
     "loader.js": "^4.7.0",
-    "mocha": "^7.2.0",
+    "mocha": "^8.2.0",
     "mocha-eslint": "^6.0.0",
     "mocha-only-detector": "^1.0.0",
     "qunit-dom": "^1.5.0",